Associated production of a top pair and a Z boson at the LHC to NNLL accuracy
Associated production of a top pair and a Z boson at the LHC to NNLL accuracy
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DOI：
10.1007/jhep04(2017)105
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发表时间：
2017-02
影响因子：
5.4
通讯作者：
A. Broggio;A. Ferroglia;G. Ossola;B. Pecjak;R. Sameshima
中科院分区：
文献类型：
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作者：
A. Broggio;A. Ferroglia;G. Ossola;B. Pecjak;R. Sameshima
我们研究了在大型强子对撞机上与Z玻色子相关的顶-反顶对产生的软胶子发射修正的再确认，以达到次-次-领先的对数精度。通过一个内部的部分子水平的蒙特卡罗代码，我们评估的总截面和几个微分分布在一个中心的质量能量为13 TeV的重新计算公式，我们匹配这些计算到下一个领先的顺序结果。
We study the resummation of soft gluon emission corrections to the production of a top-antitop pair in association with a Z boson at the Large Hadron Collider to next-to-next-to-leading logarithmic accuracy. By means of an in-house parton level Monte Carlo code we evaluate the resummation formula for the total cross section and several differential distributions at a center-of-mass energy of 13 TeV, and we match these calculations to next-to-leading order results.